Mercury's achieved a strong return to profit.
BusinessDesk says the energy company's half year earnings before interest to December 31- reached $537 million.
It recorded a net $20 million dollar profit - up from a $67 million loss last year.
Chief executive Stew Hamilton says they're doing well and don't need to raise capital.
"We've been disciplined in how we manage our money, how we earn our money and spend it, so we're investing wisely, performing strongly - and I think that gives us options."
LISTEN ABOVE

Katherine Rich: BusinessNZ CEO on the impact NZ First's proposed tax cut for small and medium businesses could have
09:03

Kerre Woodham: Are these election promises worth it to you?
04:37

Campbell Parker: DairyNZ CEO on Fonterra's positive annual result
02:16